Metal form holder for concrete wall construction



Nov. l, 1932. H. L. FELDBLET METAL4 FORM HOLDER FOR CONCRETE WALLCONSTRUCTION Filed Oct. 50, 1928 2 s heecS--Slxeea l @Mme/Wto@ y @WM fNov, l, i932. H. L. FELDBLET METAL FORM HOLDER FOR CONCRETE WALLCONSTRUCTION vFiled Oct. 50, 1928 2 Sheets-Sheet 2 IIIIHIIIHI @www@g2g/,Zw WM Patented Nov. 1, 1932 UNITED vse'inrss .HERMAN L. FELDBLET,`E NEW YoEK, N. Y.

METAEECEM I-ioLnEn EOE CONCRETE WALL CONSTRUCTION Ap'pnauon mea yoctober30,1923. serial N9. siaooo. f i

This invention relates to forms or moulds for pouring concrete arches ofa given radius between steel columns or girders of variable dimensions.f

The object of the invention further includes the provision of adjustableholding members for supporting the forms or' form holders at definitepositions on the flanges of the columns or girders. v

A further object includes the provision of metal form-members havingclamp adjustment means for supporting a .system of moulds Vin specifiedpositions between columns or girders of varying depth of body 15 andvarying width of flange.

@ther objects will appear hereinafter and attain these-objects by theconstruction il- .lustrated in the accompanying` drawings, in whichi iFigure l is atop view'through a section of wall and showing'a: preferredtype Vof form-system supported on the flanges ofadjacent columns; i

Fig. 2 is a view in perspective of a portion 25 of a column flangehaving the moulds assembled in readiness to pour the concrete arch, 'andat the same time fire proof the columns;

Fig. 3 is an enlarged detail of the adjustable form-clamp and associatedparts;

F Fig. @is a view taken'onthe line 4 -4 of ig. 2; Y

Fig. 5 isa view, in elevation, of a part of a metal form-member or'fpanwith clamp fully assembled;

Fig. 6 is a view on the'line 6 6 of Fig. 5;

Fig. 7 is a view on the line 7-7 of Fig. 5; Fig. 8 is a-view on the line8-8 of Fig. 7;

Fig. 9 is a detailed front Iview'of the clamp;

Fig. l0 is a view on the line' 10-10 of 40 9; and

Fig. 1l is a side view of the toothed clamp Vribs or adjustment means.Vn

The same numerals of reference referto like parts throughout the severalviews.

The prime obj ect of my invention is to provide means for adj ustablysupporting a given set of forms or moulds to a fraction of an inchbetween columns of varying web depth and varying ange width, so .that aconcrete 50 arched wall of a-given radius may be poured,

thus permitting a given set of moulds to be repeatedly used regardlessof varying dimen- .sions of flange 'width or web depth of supportinglcolumns. In other words, theproblem which is tobe solvedv byI myinvention is to pour concrete arches (for subway walls andthe like) of agivenV radius between columns" ofthe saine or of varying dimensions withthe same setof moulds. L

"To this end I employ a center forml or` mould 20 which isconstructed'of wood or other suitable material and Vis supported in the desiredposition between adjacent steel columns or girders 2l by my improvedform member 23 and clamping device 24 forsupporting'thel assemblyfiomflanges 22 of said columns'or girders. i l,My'imp'roved form-member ispreferably made of sheet metal and cor'np'rises' pan shaped structurewith overhanging parts 25 and26.A The pan is further provided withafslot 27 anda double ribbed toothed member 28 welded on saidpanat theslot opening, to thus provide vmeans with which engage teeth 29 ontheface of the clamp block 29 which is'held by a set screw or bolt 30 inposition on the flange clamp `or clamping device 24. The lower jaw 3l ofsaid flange clamp is provided with a set screw 32 for securely fasteningthe flangeclamp on the flange of the supporting column. It will be notedthat'the double ribs 28 eX- tend the length of the .pan and reinforcethe same at its upper part, while at the lower part said members mergeinto a head 33 having a hook 34: turned to the left on which lissupported a spreader bar 35, for use as a left hand support. For theright hand support thehook 34 is von the opposite side of head 33 as isindicated in dotted lines on Fig. 5. `vThis type of hool;constructionand lthe Vform of clamp (of Figs.v 6 'and closely engageflange 22 and no concrete is, therefore, applied to the outer flangefaces.A

u `Where, however, it is desired to lire-proof the entire column, aspecial clamp isused'. The construction illustrated in Figs. l, 2 and 31`provides means forffire-proofing the 'entire?l column. In the example'shown vin Figs.

v land 3 p'r'ovisionfis-made for fire-proofing 100 adjustably supportingthe center' mouldi'20f by suitable blocks 44. Concrete spreading soilitplates on the outer face ofthe formmember on pan 23 andthe soitboard 46ao-rd means associated with said adjustable pan for ire-proolinff saidcolumn. It will be noted that block 477 also supports the soit board 46on the spreader bars. i 3

c From the construction herein ldisclosed it is clear that'variations inwidth of ianges (22) is compensated by the over-lapping part 26 of pan23, and any variation in depthl of column web is taken care of by thevertical adjustment of the toothed ribs on pan 23 and the toothedadjusting block on the ange clamp. VThe simplicity of said adjustingfeay tureprovides means for quickly lowering or raising the assembly bymerely loosening set screws 30, then adjusting the pan and againfastening said'set screws. Y

It will be noted thatthe form construction consists of a pair of metalform-members or pans spaced by awooden iiller or center form from theflanges of the main columns. The wooden lilleri's further heldo-n thespreader bars by wedges and the entire, assembly is ad justable indirections at right angles to each other by the clamps on the metalform-mem# bers.v rlhe clamping members being adjustable vertically, asexplained above, and the jaws of the clamp being adjustable horizontallyon the girder orcolumn iiange to meet conditions of varyingdimensions.AThe construction moreover admits of` adjustment 7 to the fraction of aniii-ch which is a very valf uable feature in concrete construction. Thisfeature also provides means for pouring concrete walls or ceiling archesof constant raf dius, having the required thickness, thereby makingitpossible to accommodate basic supporting structures of variousdimensions without waste Vor loss of concrete.V Y

Having now described my invention, what I claim as new and useful anddesireto secure by Letters Patent is H 1. A `form construction forpouring .con-

crete walls of given thickness-betweensupporting members of varyingdimensions, comprising a lcenter-form of constant radius, a pan-shapedformmember at either extremity of said center-form, said formmemberhavingaslot therethrough, toothed rib members boardering said slot andending in a head outside of said *form-member, a

clamp member -in said slot, a clamp jblock toothedfreinforcing membersfor supporting said pan at varying depths from asupportingstucfture-ofvarying dimensions said reinforcing memberterminating in a head outside ot the pan'andhaving a hook.

3. In a form structure forV pouringconcretefwalls ofrequired dimensions,a formmember comprising a pan shaped structure having a slot therein,toothed 'members in said pan adjacent said slot,- a clamp havingparallel jaws extending from said pan, said clamp operating through saidslot, anda clamp f block 'having teeth `to engage lthe toothed membersadjacent said slot.

walls of required dimensions,`a form-member comprising a pan shapedstructure having a slot therein, toothed members in said'pan adjacentsaid slot', said rib members having al head with a hook to support aspreader bar, i

a clamp havingy jawsextending from said pan, said clamp operatingjinsaid slot, a clamp block having teethto engage the toothed members'adjacent said slot,and

means to protect saidvclamp from concrete when thewall -ispoured e v 5.In a form structure for pouring concrete walls of required dimensions, aforni;

member comprising a pan .shaped structure p having aslot therein andtoothed ribs adjacent said slot, saidribs having a head with# out saidpan and means for holding spreader bars in spaced relation on said pan.'

6. In aform construction for pouring concrete walls lof 'given thicknessbetween supporting members of varying dimensionsfthe combination ofi acenter-form of' constant radius and an overlapping pan-shaped formmemberat either extremity 'of said centerform, said form-member havingaslotltherethrough and reinforcing members' adjacent said slot, saidreinforcing members united in a common head which extends from theforminember, and, spreading bars supported from said head. A'

Iny testimony whereof'I havehereunto set iy hand on this 5th day ofOctober v1 -D.,

- j HERMAN- L. FELDBLET.

4. In' aform structure for pouring concrete ,99

